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Mymensingh higher secondary 2013#3

Posted: Mon Feb 18, 2019 12:33 am
by samiul_samin
In triangle $ABC$ , $H$ is orthocenter . $CD$ is perpendicular to $AB$ . The midpoint of $AH$ is $M$ and the midpoint of $BC$ is $N$ . Find the value of $\angle {MND}$.

Re: Mymensingh higher secondary 2013#3

Posted: Mon Feb 18, 2019 8:58 am
by samiul_samin
Hint
Draw a perfect picture
Answer
$90^{\circ}$